通过用户模型，对数据库进行增删改查操作

flask import Flask from flask_sqlalchemy import SQLAlchemy import config app = Flask(__name__) app.config.from_object(config) db=SQLAlchemy(app) class User(db.Model): __tablename__ = ‘User‘ id = db.Column(db.Integer, primary_key=True, autoincrement=True) username = db.Column(db.String(20), nullable=False) password = db.Column(db.String(20), nullable=False) nickname = db.Column(db.String(20)) # db.create_all() #增 user = User(username=‘xyjie‘, password=‘xyj19950326‘) db.session.add(user) db.session.commit() # 删 user = User.query.filter(User.username == ‘xyjie2‘).first() user.password = ‘xyj19950326‘ db.session.delete(user) db.session.commit() # 改 user = User.query.filter(User.username == ‘xyjie8‘).first() user.username = ‘xyjie10‘ db.session.add(user) db.session.commit() # 查 user = User.query.filter(User.username == ‘xyjie8‘).first() print(user.id, user.username, user.password) @app.route(‘/‘) def hello_world(): return ‘Hello World!‘ if __name__ == ‘__main__‘: app.run()

#增

#删

#查

#改

通过用户模型，对数据库进行增删改查操作

标签：password   .config   creat   mis   ring   增加   obj   ie8   color